.travis.yml in lita-3.3.1 vs .travis.yml in lita-4.0.0.rc1

@@ -4,9 +4,12 @@
 script: bundle exec rake
 before_install:
   - gem update --system
 services:
   - redis-server
+branches:
+  except:
+    - /^v[0-9]/
 notifications:
   webhooks:
     urls:
       - https://lita-freenode.herokuapp.com/travis